Skinning apparatus



Oct.,3, 1933. R. K. SCHMlD ET AL: 1,929,040

SKINNING APPARATUS Filed May 20, 1930 I a Fi .1. 9 r1 E f INVENTURS gig,Attn-rne y Patented Oct. 3, 1933 UNITED STATES .SKINNING APPARATUSRichard Karl Schmid and Walter Stuttgart, Germany Paul Wesel, 7

Application May 20,1930, semi NB. 453,998, and

, in Germany March 20, 1930 2 Claims. (01. 17-29 It is the main objectof our present invention to perform a rapid operation and a furtherobjectis to so construct the apparatus that any risk of damage to theskin is avoided.

The driving of the apparatus is by means of a flexible shaft. It is wellknown to drive by a flexible-shaft apparatus having rotating knives orcutters, in which the cutting-in is-prevented by protective or guarddiscs arranged at both sides of the knives. Apparatus are also knownwhich have rotating toothed discs or jagged discs in which one discmakes an oscillating or rocking movement while the other one stands.still.

According to our invention two superposed Ja ed 0r toothed discs orplates are moved relatively to each other, whereby a greater output isobtained; and by using a shape designed for the purpose for the jaggedor toothed discs or plates, all risk of injury to the skin is eliminatedin a reliable manner.

- Our invention also comprises ce:tain further details explained in thefollowingdescription.

A constructionaccording to the invention is shown by wayof example inthe accompanying 2 drawing. in which'Fi'gure 1 is a verticallongitudinal section through the centre of the apparatus, Figure 2 aplan and Figure 3-9. section on the line 3-3 of Figure 1.

The flexible shaft already referred to is con- 80 nected to the handleby means of a claw coupling, that is to say, the core has a claw thereonwhich flts the mount a, while the tube or casing is screwed on thethread of the part b by means of a screw cap. The core of the shaftdrives the 85 spindle 0 held by ball bearings r and r within thecylindrical hand piece q and which is provided at its end with a smallfloating crank-shaft :1, d On the said crank-shaft are mounted two ballbearings s and which support slot links 4 e and I. The slot links e andf engage with the two jagged or toothed discs or substantiallysemicircular plates 9 and h, which are rotatable about the bearing pin ito an angle correspondingto the eccentricity of the crank-shaft. v 5 Inorder to avoid the wearing-out of the slot link DiDSQ lIl the part infront of the toothed discs arefinserted hardened bushings k and l, whichare held in place by rings u and v, lodged in notches ek 'and '1 Thetoothed discs are 0 covered on both sides with non-toothed guard discs mand n; the protective or guard disc n being 1 made if desired-in onepiece with the front plate t of the casing t.owingtotheteethofthetoothedorimed at an angle, the skin cannot beinjured. Any injurythatmayoccuriscausedonlyatthetwo ends of the discs.In order however to avoid this, the non-toothed protective disc or guard11 is provided with two lugs o and p at the points discsmovingoroscillatingrelativelytoeachother' where the teeth of the toothed discsstop. These lugs may be provided also on the protective disc m or onboth protective discs m and n.

Unlike in the hitherto known apparatus with two flxed jagged or toothedprotective discs and with a toothed cutting knife rocking. between them,in the construction hereinbefore described, with two toothed discsswinging relatively to each other with the projections of the discsmoving at an angle to each other, the speed of cutting is increased bythe movement of the discs relatively to each other with theirprojections moving at an angle relative toeach other, to twice that ofthe apparatus hitherto known. The binding tissue between the skin andthe flesh is exccedingly elastic and yielding, so that the speed ofskinning is of substantial importance as regards the output.

What I claim is:

1. In animal skinning. apparatus having a casing, the improvementcomprising a pair of superposed substantially semi circular plateshaving a notched contour thereon forming blunt-shaped teeth extendingtherefrom, each plate lying in flush face-to-face contact, and adaptedto be oscillated, one relatively of the other, a pin bar in the casingfor centrally pivoting said plates, whereby the notched contour of oneplate is angular to the contour of the other plate upon relativeoscillation of the plates, means inconnection with the plates forrelatively oscillating the same, and a lug guard at each end of thenotched contour of the plates fixed to the casing to prevent cutting ofthe skin of animals during the skinning of the same.

2. In a skinning apparatus having a casing and a flexible drive shaft,the improvement comprising two substantially semicircular plates adaptedto be oscillated one relatively to the other, having V-shaped teethforming blunt projecting jagged ends and making a flush sliding contactat their adjacent faces and having coextensive peripheral portions, apin bar in the casing for the plates for pivoting the same, means inconnection withthe shaft for oscillating one plate relatively with theother to present the ends of the plate angularly to each other, forskinning animals without cutting the meat or skin portio thereof, andoppositely disposed slotted means extending laterally of thelongitudinal axis of the casing accommodating each end of thesemicircular plate to prevent damage to the skin and meat during theskinning operation.

- RICHARD SCHMID.

WALTER WEZEL.

